單項(xiàng)選擇題

Which of the following problems could cause the high pressure cutout switch to shut down the compressor in a refrigeration system?（）

A.A shortage of liquid refrigerant
B.Excessive frost on the evaporator
C.Excessive condenser cooling water
D.Insufficient condenser cooling water flow

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單項(xiàng)選擇題

The general purpose of a heat exchanger is to （）.

A.eliminate hot air from the condenser
B.maintain steady pressure in a system
C.heat, or cool one fluid by means of another fluid
D.reduce the engine room temperature in tropical climates

單項(xiàng)選擇題

The temperature differential occurring between the inlet temperature of the fluid to be cooled and the outlet temperature of the cooling medium in a shell-and-tube heat exchanger is greatest in which of the flow designs listed?（）

A.Cross
B.Parallel
C.Counter
D.Circular

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Which of the following problems could cause the high pressure cutout switch to shut down the compressor in a refrigeration system?（）

你可能感興趣的試題

The general purpose of a heat exchanger is to （）.

The temperature differential occurring between the inlet temperature of the fluid to be cooled and the outlet temperature of the cooling medium in a shell-and-tube heat exchanger is greatest in which of the flow designs listed?（）

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